N-Unsubstituted 2,3-dihydro-1,4-diazepinium salts 4 a -d are N-methylated readily (-5ad) by using iodomethane and potassium carbonate in dimethylformamide. The 2,3dihydro-5,7-diphenyl-I ,4-diazcpinium salt 4 d could be N-ethylated but not N-isopropylated, presumably for steric reasons. Vicinal crowd
β¦ LIBER β¦
5,12-Di(1-alkyl)thioquinanthrenediinium Bis-salts and 1-Alkyl-3-alkylthio-1,4-dihydro-4-thiooxoquinolines
β Scribed by Maslankiewicz, Andrzej; Zieba, Andrzej
- Book ID
- 121650558
- Publisher
- Japan Institute of Heterocyclic Chemistry
- Year
- 1992
- Tongue
- English
- Weight
- 208 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0385-5414
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